OpenVision retains all copyrights in the donated Source Code.
OpenVision
also retains copyright to derivative works of the Source Code,
whether

created by OpenVision or by a third party. The OpenVision copyright
notice must be preserved if derivative works are made based on the
donated Source Code.

This is just downright pilferous. No way in hell it's Free. The
first and
last sentences are all right, it's just that middle one where it lays
claim
to anything you do. Kind of a pre-emptive copyright assignment
thing...

It can't be a copyright assignment, because I have not signed it...
Title 17, Sec. 204(a)
A transfer of copyright ownership, other than by operation
of law, is not valid unless an instrument of conveyance,
or a note or memorandum of the transfer, is in writing and
signed by the owner of the rights conveyed or such owner's
duly authorized agent.

I think they have very poorly worded way of saying that they have
copyright interest in the derivative work.